Substance
ID:368942
Names and Identifiers
IUPAC Traditional name
dipotassium metabisulfite
IUPAC name
dipotassium sulfinatosulfonate
Synonyms
Potassium pyrosulfite偏硫代硫酸钾焦亚硫酸钾Potassium metabisulfite偏重亚硫酸钾Potassium disulfite
Properties
Product Information
Cation Traces
Cu: ≤20 mg/kg
As: ≤2 mg/kg
Se: ≤5 mg/kg
Pb: ≤2 mg/kg
Zn: ≤20 mg/kg
Hg: ≤1 mg/kg
Fe: ≤10 mg/kg
Impurities
organic volatile impurities, complies (GC)
residual solvents, in accordance
≤0.001% heavy metals (as Pb)
≤0.08% thiosulfate (S2O3)
51.8-57.6% sulfur dioxide
Grade
puriss.
Quality
meets analytical specification of Ph.Eur., BP, NF, FCC, E224
Purity
95.0-101.0% (iodometric)
Suitability
in accordance for appearance of solution
Linear Formula
K2S2O5
Antion Traces
chloride (Cl-): ≤100 mg/kg
Safety Information
GHS Precautionary statements
P261-P305+P351+P338
GHS Pictograms
Acute toxicity (oral, dermal, inhalation), category 4
Skin irritation, category 2
Eye irritation, category 2
Skin sensitisation, category 1
Specific Target Organ Toxicity – Single exposure, category 3
GHS Hazard statements
H315-H319-H335
GHS Signal Word
Warning
European Hazard Symbols
Irritant (Xi)Safety Statements
26-36
German water hazard class
1
Personal Protective Equipment
dust mask type N95 (US), Eyeshields, Gloves
RTECS
TT4920000
MSDS Link
Risk Statements
31-36/37/38
Physical Property
Apperance
powder
pH
3.5-4.5 (20 °C, 5%)
Molecule Details
No Data Available
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Molecular Spectra
No Data Available
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References
No Data Available
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